1. Department of Mathematics, Saveetha School of Engineering, SIMATS, Chennai, India
2. Department of Mathematics and Statistics, Hazara University, Mansehra, Pakistan
3. Faculty of Military Science, Stellenbosch University, Saldanha, South Africa
4. Faculty of Engineering, Kuwait College of Science and Technology, Kuwait City, Kuwait
5. Department of Industrial Engineering, College of Engineering King Saud University, Riyadh, Saudi Arabia